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Accessibility Standards in Audiovisual Media that may need to be considered in relation to the Accessibility Act

Content in emails to the JWG from Hemini Mehta (EBU)

From: Mehta, Hemini Sent: 31 August 2021 12:55 To: hf@list.etsi.org hf@list.etsi.org Subject: Accessibility Standards in Audiovisual Media

Dear All,

As requested from yesterday's meeting, I have some links to International Standards in the AV Media area already. Please see below. I hope it is enough to start, and if I receive any further information, I will email it later this week.

I hope it is useful.

DVB Subtitling

DVB Teletext

EBU TT-D Subtitling Distribution Format

W3C:

Web Content Accessibility Guidelines

Authoring Tool Accessibility Guidelines

Tech Specs on Accessible Rich Internet Applications, Web VTT, TTML, Personalisation and Pronunciation can be found here

ITU Documents - all these are revised at least once a year - updates expected during the November meeting.

  1. REPORT ITU-R BT.2207-5 - Accessibility to broadcasting services for persons with disabilities ITU-R BT.2207 - accessibility report
  4. REPORT ITU-R BT.2447-1* - Artificial intelligence systems for programme production and exchange - AI Report contains some Accessibility development
  6. REPORT ITU-R BT.2420-2 - Collection of usage scenarios of advanced immersive sensory media systems - AISM Report contains some Accessibility development and includes embryonic examples of haptic interaction which can be used to enhance accessible media options i. ITU-T and ITU-R work i around personalised media technologies including a joint venture on the ITU-T SG9 Question 11 work toward Common User Profiles ITU-T Work Programme

Activities

  1. ITU's Mandate on ICT Accessibility for Persons with Disabilities and Persons with Specific Needs (ITU Mandate)
  3. Accessibility (itu.int) ITU-T work areas
  5. Accessibility (itu.int) ITU-T SG16 work areas
  6. Achievements (itu.int) ITU-T SG16 achievements
  8. Session 322— Accessible media should not need to be a right – it should be a given | WSIS Forum 2021 (itu.int) with link to the session recording of the WSIS-2021 accessibility session looking at work areas underway in ITU-R SG6, ITU-T SG9 & ITU-T SG16 a. a. Andy Quested: There is more but it may be better to introduce ETSI to IRG-AVA as I believe they can attend.

Here are a couple more that we may wish to add: IETF Standards:

I don't have an easy link to these, but there are lots! One recent one we had involvement with is https://datatracker.ietf.org/doc/html/rfc8759 for carriage of TTML over RTP.

SMPTE standards:

Again there are lots that are probably out there, we recently were involved in is SMPTE 2110-43 which adds a layer on RFC8759 (above) to allow contribution of IMSC 1.2 subtitle streams alongside audio and/or video over IP. There's also the IMF specification for delivery of packages of media, which mandates use of IMSC too.

Edited by Michael Pluke